His character would become more cynical. He'd lose his naivete and optimism. Instead of believing in the good of people, he'd see only their flaws.
If Naruto joined the dark side in fanfiction, his character development would be a complete turn - around. He'd start to value power over friendship. He might use his Nine - Tails power in more aggressive and unethical ways, no longer caring about the consequences to others. His sense of humor would probably disappear, replaced with a cold and calculating demeanor.
His character would become more complex. He might start as a naive user of the dark side, thinking he can control it. But as time goes on, it would make him more brooding and solitary. His once bright and optimistic view of the world would be clouded.
His personality would become more aggressive. The once kind - hearted Ezra would be replaced by a more self - centered and power - hungry individual.
Her character could develop in a more morally ambiguous way at first. Since Orochimaru is a rather shady character, she might start to question her own values. For example, she could become more ruthless in combat as Orochimaru's teachings are often about survival of the fittest. However, as she realizes the error of her ways, she could transform into a more empathetic and wiser character, having learned from her mistakes and the dark side she has witnessed.
Naruto's character would become more cynical. He'd lose his usual optimism and be more distrustful of others. His sense of justice might be warped, as he now feels that he has been wronged. He could start to see power as the only thing that matters, rather than the bonds he once cherished.
Naruto's character would likely become more cynical. His abandonment by family would shatter his once - positive view of the world. He might start to see the world as a cruel place where only the strong survive, leading him to embrace his dark side to gain power.
It would be a very unique scenario. Dark Naruto joining the RWBY characters would mean a clash of cultures at first. The RWBY characters come from a world of Huntsmen and Huntresses, while Dark Naruto is from a world of ninjas. But over time, they could learn from each other. Dark Naruto could show them how to harness inner power in a different way, and the RWBY characters could introduce him to the concept of Dust. Their combined efforts could lead to some epic battles against the Grimm and other villains in the RWBY universe.
Their relationship could become more of a mentor - mentee type. Itachi, being more experienced, could teach Naruto some of his ninja skills and strategies. Naruto, in turn, could help Itachi see the value in hope and friendship again. They might start to rely on each other more and more as they face the challenges within Akatsuki.
In a fanfiction where they join Akatsuki, Naruto would experience a significant shift in his character. His sunny disposition might be clouded by the dark undertones of Akatsuki. He'd constantly be at war with himself, trying to balance his desire to make things right in the world with the immoral actions Akatsuki often undertakes. For Temari, she would have to adapt quickly. She might become more ruthless in order to fit in, but also secretly work towards undermining Akatsuki. Their friendship would also be put to the test as they face different challenges within the organization. Their growth would depend on how they navigate the complex web of relationships and power dynamics within Akatsuki.
Well, in a Chunin Exams fanfiction, Dark Naruto's character development could be very different from the original Naruto. At first, he might be all about causing destruction and chaos. But as the story unfolds, he could be forced to confront his inner demons. Maybe he has a moment of self - realization when he sees the consequences of his actions on the other participants of the Chunin Exams. This could lead to a slow transformation, where he starts to understand the value of friendship and the ninja way, but in a more tortured and complex way compared to the regular Naruto.
Naruto would likely become more confident. With such a powerful ability as the godlike Sharingan, he would know he has an edge in battles. He might also become more cautious, as he realizes the great responsibility that comes with such power. For example, he wouldn't want to accidentally harm his friends with a new, powerful genjutsu from the Sharingan.